Canon A 1 timer mode only

Hi!!! I have a canon a1 for a week now. All seems to work perfectly until today. When I fire the shutter almost always the timer is starting . Even I have at the ''A'' spot. And when I have it on "2 second option" again counting to 10 and then fires. So I can't use it for direct shots but only with the timer. Is anybody familiar with this problem?? Thanks a lot!!